It would depend on your state, county and city where you live. You need to check the local zoning laws etc. That would be your start.
A sheep dog.
Sheep dog
a sheep dog
Lessons from a Sheep Dog was created in 1983.
Lessons from a Sheep Dog has 75 pages.
Sheep is about the relationship between a sheep and a dog.
Where ever the heck the bear first hits when it attacks the sheep.
The ISBN of Lessons from a Sheep Dog is 0-8499-0335-1.
I think you're talking about Old English sheep dogs.
It's not about breed, it's about the owner. ANY unsocialized dog attacks.
herding sheep on a farm
He had an English Sheep Dog